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Reports problems with extension registration in <code>plugin.xml</code>.
<p>
  The following problems are reported:
<ul>
  <li>Missing <code>language</code> declaration.
    If the extension does not target a specific language, use quick fix to create an
    explicit declaration for "any language".
  </li>
  <li>Inspections: missing attributes</li>
  <li>Services: redundant <code>serviceInterface</code> declaration</li>
  <li><code>com.intellij.stubElementTypeHolder</code> without <code>externalIdPrefix</code>, see <a
    href='https://plugins.jetbrains.com/docs/intellij/stub-indexes.html?from=?from=DevkitPluginXmlInspectionDescription'>Stub Indexes</a>
  </li>
  <li><code>com.intellij.statusBarWidgetFactory</code> without <code>id</code></li>
  <li><code>com.intellij.applicationConfigurable|projectConfigurable</code> without <code>displayName</code>/<code>key</code></li>
</ul>
</p>

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<p><small>New in 2022.3</small>
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